Onagawa Unit 2
Onagawa Unit 2 is situated at the Onagawa Nuclear Power Plant in Miyagi Prefecture, Japan, operated by Tohoku Electric Power Company. It holds significance as one of the reactors to resume operations post-Fukushima, demonstrating enhanced safety measures with a net capacity of 825 MWe. The unit has
Key Stats
100/100
Onagawa Unit 2
Status: OPERATIONAL Category: POWER Country: Japan Japan Type: BWR BWR Capacity: 825 MWe
Overview
Onagawa Unit 2 is situated at the Onagawa Nuclear Power Plant in Miyagi Prefecture, Japan, operated by Tohoku Electric Power Company. It holds significance as one of the reactors to resume operations post-Fukushima, demonstrating enhanced safety measures with a net capacity of 825 MWe. The unit has been operational since its restart, contributing to Japan's energy mix.
Key Facts
Source: IAEA PRIS / reactors_canonical · Enriched by Grok Last updated: 2026-05-10
Sources
- IAEA PRIS - Onagawa-2 — Detailed reactor information and operational status from the International Atomic Energy Agency's Power Reactor Information System.
- Wikipedia - Onagawa Nuclear Power Plant — General overview of the Onagawa Nuclear Power Plant, including Unit 2.
- Tohoku Electric Power Company — Official website of the operator of Onagawa Nuclear Power Plant.
- World Nuclear Association - Nuclear Power in Japan — Country profile on Japan's nuclear power industry, including details on Onagawa.
- World Nuclear News - Onagawa 2 Restart [UNVERIFIED] — News article on the restart of Onagawa Unit 2 post-Fukushima.
Sources (1)
Related Notes
ACP100 (Changjiang demo)
The ACP100, located at the Changjiang site in China, is a planned small modular reactor (SMR) demonstration project, marking a significant step in China's exploration of compact nuclear power solutions. With a capacity of 125 MWe, it aims to provide flexible, scalable energy for civilian application
reactorsACP100 "Linglong One"
**Vendor/Designer:** [[vendors/cnnc]]
reactorsThree Mile Island Unit 1 (restart)
Located in Middletown, Pennsylvania, USA, Three Mile Island Unit 1 is a pressurized water reactor with a net capacity of 835 MWe, historically significant for its long operational history since 1974. Shut down in 2019, a restart is now planned to bring it back online, contributing to clean energy go
reactorsBREST-OD-300
**Vendor/Designer:** [[vendors/rosatom---nikiet]]
reactorsHIFAR (High-flux Australian Reactor)
The HIFAR research reactor was situated at Lucas Heights in New South Wales, Australia, and operated by ANSTO. It was a cornerstone of Australian nuclear research for isotope production and neutron scattering over its 49-year operational history until its shutdown in 2007, when it was replaced by th
reactorsBandung TRIGA (Reaktor TRIGA 2000)
Located at the Bandung Nuclear Technology Center in West Java, Indonesia, this TRIGA Mark II reactor serves as a key facility for research and training. It plays a significant role in neutron activation analysis and educational programs in nuclear science. Operational since its commissioning, it sup